Integrity

In any art, the main basis from which the art goes forward is integrity, which could be a catch-all for many other words and ideas. If an artwork does not have clearly understandable continuity, it has no integrity. What is integrity? I have been most concerned with this since teenage years for some reason. Apparently, not the only one. Merriam Webster: http://www.m-w.com/info/05words.htm